Revert patch for 1162912.

Doc/lib/libstdtypes.tex

@@ -1146,9 +1146,6 @@ Notes:
   because \var{cmp} is called multiple times for each list element while
   \var{key} and \var{reverse} touch each element only once.
 
-  \note{If both \var{key} and \var{cmp} are supplied the \var{key}
-  function is applied before the \var{cmp} function.}
-
   \versionchanged[Support for \code{None} as an equivalent to omitting
   \var{cmp} was added]{2.3}